Snow brush



FIG. 1 is a perspective view of a snow brush with the portion shown in phantom illustrating environment only and forming no part of the claimed design;

FIG. 2 is a side elevation view thereof, the other side being a mirror image;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is an enlarged front elevation thereof; and,

FIG. 6 is an enlarged rear elevation thereof. 

The ornamental design for a snow brush, as shown and described. 